Neofetch is a command line tool that prints your system information in the terminal, it is the standard way to let everyone know you’re using arch

Just FYI , neofetch is dead/archived, though it still works afaik.

Here’s an article on it

Neofetch is Dead! Here are 7 Alternatives for Your Linux System

Neofetch is no more but fret not ASCII lovers, in the open source world, there is almost always alternatives.

It's FOSS